Feature & Use:

  • Electric loading without weights, unnecessary for installing weights and debugging,  closed-loop controlling system, high-precision sensor.
  • Touch screen interface, easy operation, select hardness scales directly and test force will change in testing parameters accordingly
  • Automatic correction of high, medium and low hardness numbers in accordance with standard hardness block
  • Test force can be automatically corrected by standard force meter
  • Automatically apply the initial load and main load
  • All Rockwell & superficial Rockwell scales, total 30 types.
  • Powerful data processing functions. Various hardness scales conversion of HR, HB, HV etc. Acceptable range setting, over-range alert, operator name and sample name input etc.
  • More information of sample and testing. Data stored in USB flash disk, EXCEL format, easy for editing and processing
  • Modern and beautiful appearance, stable structure

It’s suitable to determine the Rockwell & Superficial Rockwell hardness of ferrous metals, alloy steel and hard alloy, as well as treated layers of metal surface, such as carburized layer, nitrided layer and electroplated coating, etc.

Technical Parameters:

Model HRSS-150
Rockwell initial load 10kgf (98.07N)
Superficial Rockwell initial load 3.0Kgf (29.4N)
Rockwell total load 60kgf (588.4N), 100kgf (980.7N), 150kgf (1471N)
Superficial Rockwell total load 15kgf (147.1N), 30kgf (249.2N), 45kgf (441.3N)
Rockwell hardness scales HRA, HRB, HRC, HRD, HRE, HRF, HRG, HRH, HRK,  HRL, HRM, HRR, HRP, HRS, HRV
Superficial Rockwell hardness scales HR15N, HR15T, HR15W, HR15X, HR15Y, HR30N,  HR30T, HR30W, HR30X, HR 30Y, HR45N, HR45T, HR45W, HR45X, HR45Y
Rockwell hardness testing range HRA:20-95, HRBW:10-100, HRC: 20-70, HRD: 40-77, HRE: 70-100, HRF: 60-100, HRG: 30-94, HRH: 80-100, HRK: 40-100, HRL: 100-120, HRM: 85-115, HRR: 114-125
Superficial Rockwell hardness testing range HR15N: 70-94, HR30N: 42-86, HR45N: 20-77,

HR15TW: 67-93, HR30TW: 29-82, HR45TW: 10-72

Hardness conversion Rockwell, Brinell, Vickers, etc.
Executive standard BSEN 6508, ISO 6508, ASTM E18, GB/T230
Max Height of Sample 220mm
Depth of throat 200mm
Dwelling time 0-99s
Hardness unit 0.1HR
Load value error <0.5%
Hardness reading LCD display
Data output Data stored in USB flash disk, EXCEL format
Power supply AC 220V/110V, 50/60Hz, single phase
Overall dimensions 560×220×750mm
Net weight About 70kg

Standard Accessories:

Name Quantity Name Quantity
Diamond Rockwell Indenter 1 1.5875mm Ball Indenter 1
Hardness block (HRC High, Low, HRB, HR15N, HR30N, HR30T) 6 Large, Medium, “V” shaped Testing Table 1 for each
Fuse 2A 2 Level adjusting bolt 4
Power line 1 Plastic Dustproof cover 1
USB flash disk, touch pen 1 for each Operating instruction, Product certificate 1  for each
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